Category » Teardowns and Disassembly

Removing Fly from Lens

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Removing a Fly from ‘Weather Sealed’ Canon 70-200mm f/2.8L IS II

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I’ve been doing lens stuff for a long time now. Long time. Trust me; it’s hard to remain polite the 843,911th time some newbie goes into hysterics because there’s dust in their lens. Telling them it doesn’t matter a bit, and that all their other lenses have dust they just can’t see ( because different optics magnify […]

C-4 Fisheye Lens

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Assembling the C-4 Optics 4.9mm f3.5 Hyperfisheye Prototype

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You guys have watched us gut a lot of lenses and cameras over the years. So I thought it would be fun for you to see us put one together from scratch. Compared to many of the lenses we’ve taken apart, this is all mechanical lens is rather simple: no focus motors, image stabilizers, etc. […]

Disassembly of the Sony 400mm f/2.8

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The Great 400mm Teardown Comparison. Part II – The Sony 400mm f2.8 G

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In which you will not only learn how good the construction of Sony’s new flagship is, but also everything you wanted to know about Kubu.¬† As I mentioned last week, we usually don’t write up super-telephoto teardowns, but the release of two remarkably lightweight 400mm f/2.8 lenses seemed like a great¬†opportunity to do a comparison. […]

Disassembly of the Canon RF 50mm f/1.2L

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Disassembly of the Canon RF 50mm f1.2L

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It is the best of lenses, it is the worst of lenses, it is the lens of perfection, it is the lens of complexity, it is the lens of new technology, it may be the lens of non-repairability.  A little while ago, Canon released the computer generated MTF charts for the Canon RF 50mm f/1.2 lens. Despite my ambivalence about […]

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